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Trihedral reflector, method and device for defining semi-elliptical recessed structures

A concave structure, semi-ellipse technology, applied in the field of signal feature control, can solve the problems of narrow main lobe width, increase the difficulty of interference or simulation, and achieve the effect of reducing interference

Active Publication Date: 2020-03-17
BEIJING INST OF ENVIRONMENTAL FEATURES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the width of the main lobe of the pattern formed by the scattering of the existing trihedral reflector is narrow, which increases the difficulty of interference or simulation

Method used

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  • Trihedral reflector, method and device for defining semi-elliptical recessed structures
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  • Trihedral reflector, method and device for defining semi-elliptical recessed structures

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Embodiment Construction

[0060] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0061] Such as figure 1 As shown, a method for determining a semi-elliptical concave structure provided by an embodiment of the present invention includes the following steps:

[0062] Step 101: Determine at least three major-short axis ratios, and each major-short axis ratio corresponds to at least three major-axis values.

[0063] The det...

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Abstract

The invention relates to a trihedral-angle reflector and a method and device for determining semi-elliptical concave structures. The trihedral-angle reflector comprises three reflection plates. Each reflection plate is provided with one semi-elliptical concave structure and comprises an inclined side and two perpendicular right-angle sides, wherein the inclined side and the semi-elliptical concavestructure form an n shape. Any two reflection plates in the three reflection plates are perpendicular to each other, and the two perpendicular reflection plates have a common right-angle side. The three reflection plates are used for generating echo signals in the direction opposite to the incidence direction through reflection when receiving electromagnetic waves irradiated in the incidence direction. A directional diagram formed through scattering of the trihedral-angle reflector is large in main petal width, and the interference and simulation difficulty can be reduced.

Description

technical field [0001] The invention relates to the technical field of signal characteristic control, in particular to a trihedral corner reflector, a method and a device for determining a semi-elliptical concave structure. Background technique [0002] Trihedral reflectors are widely used due to the advantages of low production cost, short production cycle, and stable target characteristics. [0003] At present, the trihedral corner reflector is composed of three vertical triangular plates, and its main scattering mechanism is three reflections, so the Radar-Cross Section (RCS) is strong in a wide range of angles. [0004] However, the width of the main lobe of the pattern formed by the scattering of the existing trihedral reflector is relatively narrow, which increases the difficulty of interference or simulation. [0005] Therefore, to address the above deficiencies, it is necessary to provide a trihedral corner reflector, a method and a device for determining a semi-ell...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/40
CPCG01S7/4004
Inventor 李焕敏李胜闫华王超崔宏林丛滨何四华
Owner BEIJING INST OF ENVIRONMENTAL FEATURES